Abstract
Double-cladding Yb3+-doped fiber with octagonal core is designed and fabricated using solution doping techniques. According to the simulated results, the octagonal-core fiber with core/cladding diameter of 30/250 μm has decreased the number of mode supported from 6 to 4, and the fiber with core/cladding diameter of 10/130 μm exhibits single-mode performance. Additionally, to confirm that the octagonal core does not influence the laser power and efficiency, CW and AO Q-switched pulsed fiber lasers using the 10/130 μm fiber are presented. The CW fiber laser has a single-mode output of 7.25 W with a slope efficiency of 80 %. For a pulsed fiber laser, an average power of 1.5 W, pulse width of 245 ns, is amplified to 18 W.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
H.M. Pask, J.L. Archambault, D.C. Hanna, L. Reekie, P.S.J. Russell, J.E. Townsend, A.C. Tropper, Operation of cladding-pumped Yb3 + -doped silica fibre lasers in 1 μm region. Electron. Lett. 30, 863–865 (1994)
H. Zellmer, A. Tünnermann, H. Welling, V. Reichel, “Double-Clad Fiber Laser with 30 W Output Power”, Optical Amplifiers and Their Applications (OAA), Fiber and Active Wavelengths (FAW),Victoria, BC, 21 July 1997
Y. Jeong, J.K. Sahu, D.N. Payne, J. Nilsson, Ytterbium doped large core fiber laser with 1.36 kW continuous wave output power. Opt. Express 12, 6088–6092 (2004)
Q. Xiao, P. Yan, S. Yin, J. Hao, M. Gong, 100 W ytterbium-doped monolithic fiber laser with fused angle-polished side-pumping configuration. Laser Phys. Lett. 8, 125–129 (2011)
H. Po, J.D. Cao, B.M. Laliberte, R.A. Minns, R.F. Robinson et al., High power neodymium-doped single transverse mode fiber laser. Electron. Lett. 29, 1500–1501 (1993)
L. Dong, T.W. Wu, H.A. McKay, L. Fu, J. Li, H.G. Winful, All-glass large-core leakage channel fibers. IEEE J. Sel. Top. Quantum Electron. 15, 47–53 (2009)
L. Li, Q. Lou, J. Zhou, J. Dong, Y. Wei, S. Du, B. He, High power single transverse mode operation of a tapered large-mode-area fiber laser. Opt. Commun. 281, 655–657 (2008)
X. Ma, C. Zhu, I. Hu, A. Kaplan, A. Galvanauskas, Single-mode chirally-coupled-core fibers with larger than 50 μm diameter cores. Opt. Express 22, 9206–9219 (2014)
G. Das, J.W.Y. Lit, L-band multiwavelength fiber laser using an elliptical fiber. IEEE Photonics Technol. Lett. 14, 606–608 (2002)
Anurag Sharma, On approximate theories of single-mode rectangular waveguides. Opt. Quantum Electron. 21, 517–520 (1989)
G. Humbert, J.M. Le Floch, D. Mouneyrac, D. Férachou, M. Aubourg, M.E. Tobar, D. Cros, J.M. Blondy, Hollow-core resonator based on out-of-plane two-dimensional photonic band-gap crystal cladding at microwave frequencies. Appl. Phys. Lett. 96, 051108 (2010)
Acknowledgments
We thank the support of the “National High-Technology Research and Development Program of China” (2013AA031501) and “the Fundamental Research Funds for the Central Universities” (2014TS018).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Wang, Y., Liao, L., Zhao, N. et al. Experimental demonstration of optical fiber laser with octagonal-shaped core. Appl. Phys. A 119, 791–794 (2015). https://doi.org/10.1007/s00339-015-9032-4
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00339-015-9032-4